| Item Name | Spring Helical Extension |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5360 Coil Flat Leaf and Wire Springs |
| National Item Identification Number (NIIN) | 01-388-7029 (013887029) |
| NCB Code | USA (01) |
| Manufacturer | Century Spring Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AARX | INSIDE DIAMETER | 0.418 INCHES NOMINAL |
| ABQK | END STYLE | SHORT TWISTED HOOK BOTH ENDS |
| AGEK | SPRING FREE LENGTH | 2.750 INCHES NOMINAL |
| APCN | COIL QUANTITY | 28 |
| ASZD | LOAD RATING | 10.20 POUNDS NOMINAL |
| AXLH | COIL HELIX DIRECTION | RIGHT-HAND |
| AXLP | SPRING DEFLECTION RATE | 2.050 POUNDS PER INCH NOMINAL |
| AXMC | HOOK RADIUS | 0.209 INCHES NOMINAL BOTH ENDS |
| CXTJ | COIL TO HOOK INSIDE LENGTH | 0.418 INCHES NOMINAL BOTH ENDS |
| APGF | DESIGN TYPE | CLOSED |
| MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
| AXLQ | SPRING FREE OUTSIDE DIAMETER | 0.562 INCHES NOMINAL |
| STYL | STYLE DESIGNATOR | CYLINDRICAL |
| Relevant Components for NSN - 5360-01-388-7029, 5360013887029 | ||||
| 5320-01-318-6843 (5320013186843) | 5340-01-557-4760 (5340015574760) | 5340-00-336-3776 (5340003363776) | 5340-01-560-8528 (5340015608528) | |
| 5330-01-684-2979 (5330016842979) | 5310-01-185-8686 (5310011858686) | 5360-00-394-4491 (5360003944491) | 5320-01-267-6376 (5320012676376) | |
| 5315-00-432-8021 (5315004328021) | 5315-01-271-9296 (5315012719296) | 5340-01-353-1927 (5340013531927) | 5320-01-413-1816 (5320014131816) | |
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